AR1000_16 Datasheet, PDF (4/61 Pages) Microchip Technology – AR1000 Series Resistive Touch Screen Controller

AR1000 SERIES RESISTIVE TOUCH SCREEN CONTROLLER
TABLE 1-1: PIN DESCRIPTIONS
Pin
SSOP, SOIC
1
2
3
QFN
18
19
20
4
1
5
2
6
3
7
4
8
5
9
6
10
7
11
8
12
9
13
10
14
11
15
12
16
13
17
14
18
15
19
16
20
17
Function
VDD
M1
SY-
M2
WAKE
SIQ
SY+
SS
SDO
NC
SCK/SCL/TX
NC
SDI/SDA/RX
SX+
Y+
Y-
5WSX-
X+
X-
VSS
Description/Comments
Supply Voltage
Communication Selection
Sense Y- (8-wire). Tie to VSS, if
not used.
4/8-wire or 5-wire Sensor
Selection
Touch Wake-up/Touch Detection
LED Drive/SPI Interrupt. No
connect, if not used.
Sense Y+ (8-wire). Tie to VSS, if
not used.
Slave Select (SPI). Tie to VSS, if
not used.
SPI Serial Data Output/I²C
Interrupt. Tie to Vss, if UART.
No connection. No connect or tie
to VSS or VDD.
SPI/I²C Serial Clock/UART
Transmit
No connection. No connect or tie
to VSS or VDD.
I²C Serial Data/SPI Serial Data
Input/UART Receive
Sense X+ (8-wire). Tie to VSS, if
not used.
Y+ Drive
Y- Drive
5W Sense (5-wire)/Sense X-
(8-wire). Tie to VSS, if not used.
X+ Drive
X- Drive
Supply Voltage Ground
DS40001393C-page 4
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